Measurement of D* mesons in jets from p+p collisions at s=200GeV

B. I. Abelev et al. (STAR Collaboration)
Phys. Rev. D 79, 112006 – Published 12 June 2009

Abstract

We report the measurement of charged D* mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy s=200GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D* mesons with fractional momenta 0.2<z<0.5 in inclusive jets with 11.5 GeV mean transverse energy, the production rate is found to be N(D*++D*)/N(jet)=0.015±0.008(stat)±0.007(sys). This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.

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  • Received 6 January 2009

DOI:https://doi.org/10.1103/PhysRevD.79.112006

©2009 American Physical Society

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Vol. 79, Iss. 11 — 1 June 2009

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